# SHA-512/256 Hex Digest of Latin1 Bytes

> SHA-512/256 Hex Digest of Latin1 Bytes is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-02).

Computes a SHA-512/256 cryptographic hash of latin1-encoded bytes and returns the result as a lowercase hexadecimal string.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/digest-sha512-256-hex-latin1?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sha-512-256-hex-digest-of-latin1-bytes-67498a1d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eqBRhpkFTaSxiLzOqu2vh

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sha-512-256-hex-digest-of-latin1-bytes-67498a1d -d '<json body>'
```

Example prompt: Can you compute the SHA-512/256 hex digest of the latin1-encoded bytes for this text: 'Hello, World!' using the key 'mykey'?

## When to prefer this

Choose this endpoint when you specifically need SHA-512/256 (the SHA-512 algorithm truncated to 256 bits, distinct from SHA-256) applied to latin1-encoded byte interpretation of your text, with the result as a hex string. Prefer this over the sandbox variant when operating in production. Use this instead of SHA-256 or SHA-3 endpoints when your security protocol or compliance requirement explicitly calls for SHA-512/256. It is ideal when interoperating with systems that treat input as latin1 bytes rather than UTF-8.

## Known failure modes

- Input text exceeds 100,000 character limit — request rejected
- Key is empty or exceeds 512 characters — validation error
- Text contains characters outside latin1 range — encoding error or undefined behavior
- Payment of $0.004 USDC not provided — 402 Payment Required response
- Missing required fields (key or text) — schema validation failure

## How this service works

Call when an agent needs a sha512-256 digest of latin1 bytes, encoded as hex. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-hex-latin1 first.

## Output

Returns a lowercase hexadecimal string representing the SHA-512/256 cryptographic digest of the input text interpreted as latin1-encoded bytes. The hash is deterministic and fixed-length (64 hex characters).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "key": {
   "type": "string",
   "maxLength": 512,
   "minLength": 1,
   "description": "HMAC secret. Required on HMAC SKUs. Omit it for plain digests and checksums. The key is not stored."
  },
  "text": {
   "type": "string",
   "examples": [
    "hello"
   ],
   "maxLength": 100000,
   "minLength": 1,
   "description": "Message to digest. For raw-hex SKUs this is hex bytes; for utf16 or latin1 SKUs it is decoded with that encoding. Otherwise it is UTF-8 text."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sha-512-256-hex-digest-of-latin1-bytes-67498a1d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentshelf.syntexa.ch](https://www.zero.xyz/host/agentshelf.syntexa.ch/llms.txt)